Synthesis of Mn-doped ZnS architectures in ternary solution and their optical properties

Wang, Xinjuan; Zhang, Qinglin; Zou, B. S.; Lei, Aihua; Ren, Pinyun

doi:10.1016/j.apsusc.2011.07.135

Cited by 30 publications

(14 citation statements)

References 33 publications

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“…Note that most reports in the literature refer to doped samples with the zinc blende structure. Papers related to the wurtzite structure are less frequent, and the stabilization of this high-temperature phase is mainly correlated with the formation of special elongated morphologies[8,15,16,[39][40][41]. However, in our case, the wurtzite phase was obtained due to the high temperatures reached during the MSR process.…”

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confidence: 58%

Synthesis of Mn2+-doped ZnS by a mechanically induced self-sustaining reaction

et al. 2019

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The mechanochemical process denoted as mechanically-induced self-sustaining reaction was successfully applied in obtaining Mn-doped ZnS samples with a Mn content between 0 and 5 mol%. The process consists in milling Zn/Mn/S powder elemental mixtures with the appropriate stoichiometry, which promotes after approximately 80 min the induction of a combustion reaction. The doping level was properly adjusted by controlling the atomic ratio of the starting mixture. A complete characterization of samples was carried out, including X-ray diffraction, high-resolution transmission electron microscopy, selected area electron diffraction, energy dispersive X-ray spectroscopy, Raman spectroscopy, diffuse reflectance UV-Vis spectroscopy and emission and excitation photoluminescence measurements. A wurtzite structure, in which Mn 2+ replace Zn 2+ , was obtained with a nanometric character. The photoluminescence of samples showed the characteristic Mn 2+ 4 T1-6 A1 emission that was highly dependent on the doping level. The maximum luminescence efficiency through the ZnS excitation was found for a doping value of 1 mol%. The photoluminescence showed virtually no contribution from the host emission, which confirmed that samples were properly doped.

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confidence: 58%

Synthesis of Mn2+-doped ZnS by a mechanically induced self-sustaining reaction

et al. 2019

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“…The final product was then dried in air for 12 h to get powders. The as-synthesized powders were then annealed in air at 100 uC, 200 uC, 400 uC, 500 uC, and 600 uC for 2 h in a muffle furnace at the heating rate of 10 uC min 21 then cooled down at the same rate of 10 uC min 21 (furnace cooling). Henceforth, the obtained as-synthesized, 100 uC, 200 uC, 400 uC, 500 uC, and 600 uC annealed samples will be denoted as S1, S2, S3, S4, S5, and S6, respectively, unless otherwise specified.…”

Section: Experimental Sectionsmentioning

confidence: 99%

“…were carried out on a Tecnai T-20 microscope operating at 300 kV. For DSC analysis, high-resolution Mettler-Toledo (DSC 822e) equipment was used with a heating rate of 10 K min 21 . The TGA analysis of the complex precursor was conducted on a NETZSCHSTA 409 instrument with a heating rate of 10 K min 21 .…”

Section: Characterizationmentioning

confidence: 99%

Ethylenediamine assisted synthesis of wurtzite zinc sulphide nanosheets and porous zinc oxide nanostructures: near white light photoluminescence emission and photocatalytic activity under visible light irradiation

2013

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“…Moreover, D-dots can potentially possess more unique properties, that is, zero reabsorption, high temperature stability, and reduced chemical sensitivity [14]. Among them, Mndoped ZnS D-dots have been studied because it exhibited a typical photoluminescence from the Mn 2+ 4 T 1 → 6 A 1 transition centered at about 595 nm [16,17]. Since biomedical fluorescence imaging, especially noninvasive in vivo imaging, requires deep penetration of light into and out of tissues, and the best penetration is achieved by light with a near-infrared wavelength ranging from 600 to 1000 nm [18,19], Mn-doped ZnS D-dots may become a new class of practical fluorescence biological labeling.…”

Section: Introductionmentioning

confidence: 99%